/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1250.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:49:54,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:49:54,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:49:54,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:49:54,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:49:54,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:49:54,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:49:54,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:49:54,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:49:54,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:49:54,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:49:54,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:49:54,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:49:54,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:49:54,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:49:54,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:49:54,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:49:54,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:49:54,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:49:54,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:49:54,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:49:54,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:49:54,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:49:54,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:49:54,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:49:54,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:49:54,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:49:54,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:49:54,298 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:49:54,310 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:49:54,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:49:54,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:49:54,313 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:49:54,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:49:54,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:49:54,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:49:54,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:49:54,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:49:54,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:49:54,315 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:49:54,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:49:54,316 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:49:54,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:49:54,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:49:54,316 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:49:54,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:49:54,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:49:54,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:49:54,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:49:54,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:49:54,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:49:54,318 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 21:49:54,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:49:54,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:49:54,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:49:54,672 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:49:54,673 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:49:54,673 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2020-08-22 21:49:54,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea6756b4/30fd9167e4414600b1db26b4d2668ee9/FLAG08b9949d7 [2020-08-22 21:49:55,202 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:49:55,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2020-08-22 21:49:55,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea6756b4/30fd9167e4414600b1db26b4d2668ee9/FLAG08b9949d7 [2020-08-22 21:49:55,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea6756b4/30fd9167e4414600b1db26b4d2668ee9 [2020-08-22 21:49:55,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:49:55,596 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:49:55,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:49:55,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:49:55,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:49:55,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:55,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f1dba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55, skipping insertion in model container [2020-08-22 21:49:55,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:55,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:49:55,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:49:55,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:49:55,816 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:49:55,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:49:55,961 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:49:55,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55 WrapperNode [2020-08-22 21:49:55,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:49:55,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:49:55,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:49:55,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:49:55,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:55,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:55,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:55,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:56,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:56,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:56,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:56,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:49:56,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:49:56,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:49:56,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:49:56,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:49:56,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:49:56,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:49:56,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 21:49:56,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-22 21:49:56,072 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-08-22 21:49:56,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:49:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:49:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 21:49:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 21:49:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-22 21:49:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:49:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 21:49:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:49:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:49:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-08-22 21:49:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:49:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:49:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:49:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 21:49:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:49:56,432 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:49:56,432 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 21:49:56,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:49:56 BoogieIcfgContainer [2020-08-22 21:49:56,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:49:56,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:49:56,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:49:56,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:49:56,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:49:55" (1/3) ... [2020-08-22 21:49:56,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db2af78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:49:56, skipping insertion in model container [2020-08-22 21:49:56,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55" (2/3) ... [2020-08-22 21:49:56,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db2af78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:49:56, skipping insertion in model container [2020-08-22 21:49:56,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:49:56" (3/3) ... [2020-08-22 21:49:56,446 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2020-08-22 21:49:56,456 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:49:56,463 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:49:56,477 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:49:56,494 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:49:56,494 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:49:56,494 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:49:56,494 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:49:56,494 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:49:56,495 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:49:56,495 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:49:56,495 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:49:56,512 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-08-22 21:49:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-22 21:49:56,523 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:56,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:49:56,525 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:56,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:56,530 INFO L82 PathProgramCache]: Analyzing trace with hash -262911209, now seen corresponding path program 1 times [2020-08-22 21:49:56,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:56,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478860887] [2020-08-22 21:49:56,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:56,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:56,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 21:49:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:56,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:49:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:56,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-22 21:49:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:49:56,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478860887] [2020-08-22 21:49:56,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:56,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:49:56,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404161382] [2020-08-22 21:49:56,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:49:56,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:56,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:49:56,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:49:56,861 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 4 states. [2020-08-22 21:49:57,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:57,163 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2020-08-22 21:49:57,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 21:49:57,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-08-22 21:49:57,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:57,177 INFO L225 Difference]: With dead ends: 144 [2020-08-22 21:49:57,177 INFO L226 Difference]: Without dead ends: 72 [2020-08-22 21:49:57,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:49:57,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-08-22 21:49:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-08-22 21:49:57,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-08-22 21:49:57,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2020-08-22 21:49:57,238 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 38 [2020-08-22 21:49:57,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:57,239 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2020-08-22 21:49:57,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:49:57,240 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2020-08-22 21:49:57,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 21:49:57,243 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:57,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:49:57,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:49:57,244 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:57,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:57,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1870357407, now seen corresponding path program 1 times [2020-08-22 21:49:57,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:57,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [415184840] [2020-08-22 21:49:57,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 21:49:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:49:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 21:49:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:49:57,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [415184840] [2020-08-22 21:49:57,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:57,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:49:57,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752233264] [2020-08-22 21:49:57,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:49:57,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:57,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:49:57,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:49:57,483 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand 6 states. [2020-08-22 21:49:57,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:57,682 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2020-08-22 21:49:57,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 21:49:57,682 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-08-22 21:49:57,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:57,686 INFO L225 Difference]: With dead ends: 93 [2020-08-22 21:49:57,687 INFO L226 Difference]: Without dead ends: 77 [2020-08-22 21:49:57,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:49:57,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-08-22 21:49:57,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-08-22 21:49:57,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-08-22 21:49:57,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-08-22 21:49:57,720 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 52 [2020-08-22 21:49:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:57,720 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-08-22 21:49:57,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:49:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-08-22 21:49:57,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-08-22 21:49:57,723 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:57,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:49:57,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:49:57,724 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:57,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:57,725 INFO L82 PathProgramCache]: Analyzing trace with hash 116411547, now seen corresponding path program 1 times [2020-08-22 21:49:57,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:57,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063623749] [2020-08-22 21:49:57,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 21:49:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:49:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 21:49:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:49:57,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063623749] [2020-08-22 21:49:57,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:57,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:49:57,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678030314] [2020-08-22 21:49:57,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:49:57,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:57,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:49:57,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:49:57,919 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 6 states. [2020-08-22 21:49:58,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:58,100 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2020-08-22 21:49:58,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 21:49:58,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-08-22 21:49:58,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:58,103 INFO L225 Difference]: With dead ends: 97 [2020-08-22 21:49:58,103 INFO L226 Difference]: Without dead ends: 81 [2020-08-22 21:49:58,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:49:58,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-08-22 21:49:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2020-08-22 21:49:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-08-22 21:49:58,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-08-22 21:49:58,117 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 55 [2020-08-22 21:49:58,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:58,117 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-08-22 21:49:58,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:49:58,117 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-08-22 21:49:58,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-08-22 21:49:58,119 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:58,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:49:58,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:49:58,120 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:58,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:58,120 INFO L82 PathProgramCache]: Analyzing trace with hash -278535077, now seen corresponding path program 1 times [2020-08-22 21:49:58,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:58,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573468404] [2020-08-22 21:49:58,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:49:58,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:49:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:49:58,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:49:58,238 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:49:58,238 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:49:58,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:49:58,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:49:58 BoogieIcfgContainer [2020-08-22 21:49:58,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:49:58,289 INFO L168 Benchmark]: Toolchain (without parser) took 2692.70 ms. Allocated memory was 140.0 MB in the beginning and 235.4 MB in the end (delta: 95.4 MB). Free memory was 104.0 MB in the beginning and 117.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,290 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 122.6 MB in the beginning and 122.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.80 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 104.0 MB in the beginning and 179.9 MB in the end (delta: -75.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,292 INFO L168 Benchmark]: Boogie Preprocessor took 50.98 ms. Allocated memory is still 201.3 MB. Free memory was 179.9 MB in the beginning and 177.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,293 INFO L168 Benchmark]: RCFGBuilder took 423.35 ms. Allocated memory is still 201.3 MB. Free memory was 177.6 MB in the beginning and 155.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,294 INFO L168 Benchmark]: TraceAbstraction took 1847.66 ms. Allocated memory was 201.3 MB in the beginning and 235.4 MB in the end (delta: 34.1 MB). Free memory was 154.9 MB in the beginning and 117.0 MB in the end (delta: 37.9 MB). Peak memory consumption was 71.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,298 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 122.6 MB in the beginning and 122.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 365.80 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 104.0 MB in the beginning and 179.9 MB in the end (delta: -75.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.98 ms. Allocated memory is still 201.3 MB. Free memory was 179.9 MB in the beginning and 177.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.35 ms. Allocated memory is still 201.3 MB. Free memory was 177.6 MB in the beginning and 155.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1847.66 ms. Allocated memory was 201.3 MB in the beginning and 235.4 MB in the end (delta: 34.1 MB). Free memory was 154.9 MB in the beginning and 117.0 MB in the end (delta: 37.9 MB). Peak memory consumption was 71.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68. Possible FailurePath: [L67] double x = 0.0 / 0.0; [L68] double y = 0.0 / 0.0; [L69] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4294967301, \old(y)=4294967299] [L55] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967301] [L27] __uint32_t msw, lsw; VAL [\old(x)=4294967301, x=4294967301] [L30] ieee_double_shape_type ew_u; VAL [\old(x)=4294967301, ew_u={2:0}, x=4294967301] [L31] ew_u.value = (x) VAL [\old(x)=4294967301, ew_u={2:0}, x=4294967301] [L32] EXPR ew_u.parts.msw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.msw=4293918721, x=4294967301] [L32] (msw) = ew_u.parts.msw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=4294967301] [L33] EXPR ew_u.parts.lsw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=4294967301] [L33] (lsw) = ew_u.parts.lsw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=4293918721, x=4294967301] [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L50] return 0; VAL [\old(x)=4294967301, \result=0, lsw=4294967297, msw=4293918721, x=4294967301] [L55] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967301, \old(y)=4294967299, __fpclassify_double(x)=0, x=4294967301, y=4294967299] [L55] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=4294967301, \old(y)=4294967299, __fpclassify_double(x)=0, x=4294967301, y=4294967299] [L56] return y; VAL [\old(x)=4294967301, \old(y)=4294967299, \result=4294967299, x=4294967301, y=4294967299] [L69] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4294967299, x=4294967301, y=4294967299] [L69] double res = fmax_double(x, y); VAL [fmax_double(x, y)=4294967299, res=4294967299, x=4294967301, y=4294967299] [L71] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967299] [L16] return x != x; VAL [\old(x)=4294967299, \result=0, x=4294967299] [L71] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=4294967299, x=4294967301, y=4294967299] [L71] COND TRUE !isnan_double(res) VAL [isnan_double(res)=0, res=4294967299, x=4294967301, y=4294967299] [L72] __VERIFIER_error() VAL [res=4294967299, x=4294967301, y=4294967299] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 65 SDslu, 416 SDs, 0 SdLazy, 313 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 12412 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...